Comparative Study of the Flavonoid Content in Radix Scutellaria from Different Cultivation Areas in China

Figure 2

HPLC chromatograms of mixed reference substance (a) and sample (b) (the labeled peaks 1–8 are scutellarin, baicalin, scutellarein, wogonoside, baicalein, wogonin, chrysin, and oroxylin A).

(a)

(b)